Energy dispersion relation for negative refraction (NR) materials
arXiv:1102.3535 · doi:10.1016/j.optcom.2011.08.007
Abstract
A general energy dispersion relation is developed for metamaterials having the negative-refraction (NR) property. It is shown that absorption effects are involved with NR phenomena, and the conditions under which NR occurs are discussed. Simple equations for NR are developed using Lorentzian models.
arXiv comment14 pages